HP 100BaseT Podręcznik Użytkownika Pobierz pdf (Strona 44)

HP 100Base-T Hubs Installation and Reference Guide

2-12 Installing the System

Powering on the Hub

1. Plug one end of the power cord into a power outlet, and the

other end into the power socket at the rear of the hub (in that

order for reasons of safety).

2. Check the LED indicator marked

3RZHUon the front panel to

see if it is on.

3. The hub performs a self-diagnostic test upon power-on.

(Note that this test takes about 50 seconds to complete.) For

details about the system self-diagnostic test, refer to the

following section.

The unit supports a "hot swap" feature which permits you to

connect/disconnect Stacking Cables without powering off the hub

and without disrupting the operation of the hubs in the stack.

However, when changing Switch Port Modules, first disconnect

power to the concerned hub.

Diagnostic Tests

Upon power on, the system performs an internal self-diagnostic

test of major hub components. If any component fails during

the test, the hub will try to complete the diagnostic procedure.

Otherwise, the system will halt. For related information, refer

'LDJQRVWLF7HVW,QGLFDWRUVin Chapter 5.

Note: You can run system diagnostics at any time via the VT-100

console interface (by selecting

Restart the Agent

option). However,

when testing begins, the system leaves normal operation. If no problem

is encountered by diagnostics, the system automatically returns to

normal operation.

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HP 100BaseT Podręcznik Użytkownika Strona 44